[moparmadness74]

I would change the alternator before I changed the Computer it's much cheaper, thats a weird problem, I wonder if somehow it has some bad brushes or something in it that don't make good contact at higher RPM's ???? Threre are no "signals" sent form the computer to the alternator, the voltage regulator is in the computer but thats about it. So with that said I guess thats somewhat of a "signal" but nothing crazy complecated like digital, it's just like the old school Mopar charging systems, but instead of having the regulator in a box on the firewall it's in the computer. I don't think thats likely to be the cause of the failure since it's not moving ya know? I would change out the alternator it's self, I would also check the grounds to the chasis and the motor, I'm sure it's possible that the engine is torking and disconnecting a ground, well something to try anyway, hope this helps.